No, is not posible in the Black magic camera to fix a manual white blance, only can choose between the selected Temp that the menu offer you, and underwater I think this is a BIG PROBLEM (if you don´t want to shoot in RAW/DNG).

Yes, and the Temp of the water is maybe more than 15000ºK and you will fix the camera at 7500ºK, this means that the blue will be an artificial blue and not a really blue. Other solution is to put a red filter in the camera and fix the Temp to the lights, but I think never will have a perfect white balance with the blue.

I am thinking in buy a new underwater video equipment and I am studying the BMCC 4K, but before I have to resolve this problem of the WB underwater, becuase shooting in RAW means that I will need A LOT OF space in discs.

If you chose to shoot in ProRes - and to get the best possible quality - you will need to nail the WB while shooting (either by grey card - look at the the Amphibico (here), using something white

Hi all,

About the white balance in PRORES, how can you use the Amphibico white balance card if you have not a white balance push button in the camera? You only have different white balance valors (3500, 4500,...) but you can not fix it pushing a button like a normal video camera.

About the BMCC or the BM 4K the problem underwater has to be the same: the white balance. You have to fix a manual white balance ( 3200, 4500, 5000, 5600, 6500 or 7500ºK) and it is impossible to fix another valor here, for this reason is very difficult to have a perfect underwater white balance.

If you want to film in RAW is not a problem, but if you want don´t want to film in RAW you will obtain images with blue or red dominant.

What do you think about it?

How is possible to obtain a perfect white balance underwater in PRORES?